101851
Attach-a-Matic (mule drive) adjustment knob for Wheel Horse Attach-a-Matic tractors
Original part (OEM)
Not checked yet
PorkForge replacement
Not made yet
Part facts
- Original part number
- 101851R1
- Manufacturer
- Wheel Horse
- Part type
- Knobs · Control knobs and handles
- System
- Operator controls
- Notes
- Knob on the front of the Wheel Horse Attach-a-Matic hitch used to set mower belt tension; the kit also contains a spring pin, instructions and a setting nail. Forum members describe the original as a brittle phenolic-type plastic that breaks and does not glue well. A forum vendor sold kits for about $10 in 2012.
- Last reviewed
- Oct 28, 2026 · record pf-lg-00002
Dimensions How to measure this part
Fits these machines
| Model | Years | Notes | Evidence |
|---|---|---|---|
| Wheel Horse Attach-a-Matic tractors | Not recorded | models not listed in thread | Reported 1 |
Where to find one today
Why it is hard to get
- Forum request: Owner seeking a replacement for a broken knob, June 2012. 1
Can this part be made again?
EligiblePhysical replacement
Hand knob on a tension adjuster: not structural or safety-critical. Size not published; small (inferred).
Candidate materials: PETG, ASA (confirmed by test-fitting).
EligibleSTL / FreeCAD file
Can be offered as a printable file and an editable FreeCAD model once the measurements are verified.
Sources
- Broken mule drive knob (RedSquare Wheel Horse Forum)
- Hardware (Wheel Horse Parts and More category page; lists #101851 Attach-O-Matic Adjustment Knob)
Not affiliated with or endorsed by Wheel Horse or its successors. The name is used only to identify compatibility. Part numbers are shown for reference. Check fit against your own machine. Spot a mistake?
Verification checklist (4 of 8 met)
- ✕ OEM part number not yet verified from an OEM or dealer source
- ✓ Cited by two websites, or by an OEM or dealer source
- ✓ At least one compatible model with a source
- ✕ 1 kinds of fact beyond the name (aftermarket prices); 3 needed
- ✕ Original availability not yet checked
- ✓ Text and title are distinct
- ✓ No editorial hold
- ✕ Not yet reviewed and signed off for search
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